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Finding the Fourth Proportional to 84,866.78, 117,116.22 and 46,628.79

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Solution

The fourth proportional to 84,866.78, 117,116.22 and 46,628.79 is: 64,347.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,866.78 : 117,116.22 = 46,628.79 : x
  2. Step 2: Convert to fraction form
    84,866.78/117,116.22 = 46,628.79/x
  3. Step 3: Cross multiply
    84,866.78x = 117,116.22 × 46,628.79
  4. Step 4: Simplify right side
    84,866.78x = 5,460,987,627.97
  5. Step 5: Solve for x
    x = 5,460,987,627.97/84,866.78
  6. Step 6: Final answer
    x = 64,347.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.